Which Cat 3406 should I start with for maximum HP

The rest of the drive train on these trucks is designed for the 250 HP engine.

Even in stock form they have a habit of blowing up the transfer case in reverse in low range on the 900 series.

The 800 series trucks do not have the room under the hood for a turbo.

For the money you are better off with a M916, through M920 truck as they have a cummins 400 in them.

 

What model military truck are you working on?

 

what is the very best block to start with

 

If you're talking just bare block and nothing else, 6NZ MBN 7CZ and I'm pretty sure all the Acert blocks are the same too BXS MXS and NXS

 

At what point does workability come into effect? 800 sounds great but how will it be workin everyday. generaly grossin 110K. Obviously I understand about watchin coolant/ exh. temps and drivetrain durability. But partwise will the engine support the added HP? just dont wanna go overboard and do engine damage from doin day to day work
thanks

 

If you use the right combination of parts and drive it respectively then 800hp could be safe for a daily drive. I think one of the biggest issues with big power on a daily drive is added stress on the input shaft of the transmissions. To help with pre-mature bearing failure in the transmission you want to avoid lugging the engine.

 

Mr. Haney,

I just bought a w900 with a 3406E in it. The SN is 6TS05737. Can you tell me anything about this engine? What kind of hp can I get with you working on the ecm and a turbo? Thank you!!